* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html,body,#app {
    font-family: Arial, Helvetica, sans-serif;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to bottom, #20427a, #10152b);
    user-select: none;
    overflow: hidden;
}
.el-icon:hover {
    cursor: pointer;
}
.is-active{
    color: #3069f0!important;
}

.star-container{
    height: 100%;
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
}
  @keyframes star-fall {
        0% {
            opacity: 0;
            transform: scale(0.5) translate3d(0, 0, 0);
            -webkit-transform: scale(0.5) translate3d(0, 0, 0);
            -moz-transform: scale(0.5) translate3d(0, 0, 0);
        }
        50% {
            opacity: 1;
            transform: translate3d(-200px, 200px, 0);
            -webkit-transform: translate3d(-200px, 200px, 0);
            -moz-transform: translate3d(-200px, 200px, 0);
        }
        100% {
            opacity: 0;
            transform: scale(1.2) translate3d(-300px, 300px, 0);
            -webkit-transform: scale(1.2) translate3d(-300px, 300px, 0);
            -moz-transform: scale(1.2) translate3d(-300px, 300px, 0);
        }
    }
    .star {
        display: block;
        width: 100px;
        background: transparent;
        position: relative;
        opacity: 0;
        animation: star-fall 4s linear infinite;
        -webkit-animation: star-fall 4s linear infinite;
        -moz-animation: star-fall 4s linear infinite;
     }
     .star::after{
        content: '';
        display: block;
        border: 0px solid #fff;
        border-width: 0px 80px 4px 80px;
        border-color: transparent transparent transparent rgba(255, 255, 255, .5);
        box-shadow: 0 0 1px 0 rgba(255, 255, 255, .1);
        transform: rotate(-45deg) translate3d(1px, 3px, 0);
        -webkit-transform: rotate(-45deg) translate3d(1px, 3px, 0);
        -moz-transform: rotate(-45deg) translate3d(1px, 3px, 0);
        transform-origin: 0% 100%;
        -webkit-transform-origin: 0% 100%;
        -moz-transform-origin: 0% 100%;
        }